1) When a gadget is moved into a parent gadget the X and Y co-ordinates are zeroed. They should maybe remain unchanged or better still the correct offset calculated with respect to the original point and new origin so that relative position to the form origin is unaltered.
2) Where a parent Panel gadget already has a child gadget and another gadget is moved into the same container the Properties pane content in the Form tool will be changed to display those of the first child gadget of the parent and the selection is changed. However, the selection handles drawn on the canvas don't reflect the change and a misleading editor configuration results.
Win 11 6.30 X64 but its been around for a while.